bsdiff(1)
compares to and writes to a binary patch suitable for use by bspatch(1).
Description
BSDIFF(1) General Commands Manual BSDIFF(1)
NAME
bsdiff — generate a patch between two binary files
SYNOPSIS
bsdiff ⟨
oldfile ⟩ ⟨
newfile ⟩ ⟨
patchfile ⟩
DESCRIPTION
bsdiff compares ⟨
oldfile ⟩ to ⟨
newfile ⟩ and writes to ⟨
patchfile ⟩ a binary patch suitable for use by
bspatch(1). When ⟨
oldfile ⟩ and ⟨
newfile ⟩ are two versions of an executable
program, the patches produced are on average a factor of
five smaller than those produced by any other binary patch
tool known to the author.
bsdiff uses memory equal to 17 times the size of ⟨
oldfile ⟩, and requires an absolute minimum working set size of 8 times the size of oldfile.
SEE ALSO
AUTHORS
Colin Percival <cperciva@freebsd.org> FreeBSD May 18, 2003 BSDIFF(1)